Answer in brief
CVE-2024-48881 records a Medium severity (CVSS 5.5) vulnerability in bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0729029e647234fa1a94376b6edffec5c2cd75f6 <4379c5828492a4c2a651c8f826a01453bd2b80b0 || >=db9439cef0b5efccf8021fe89f4953e0f901e85b <336e30f32ae7c043fde0f6fa21586ff30bea9fe2 || >=991e9c186a8ac6ab272a86e0ddc6f9733c38b867 <fb5fee35bdd18316a84b5f30881a24e1415e1464 || >=68118c339c6e1e16ae017bef160dbe28a27ae9c8 <5202391970ffbf81975251b3526b890ba027b715 || >=028ddcac477b691dd9205c92f991cc15259d033e <cc05aa2c0117e20fa25a3c0d915f98b8f2e78667 || >=028ddcac477b691dd9205c92f991cc15259d033e <5e0e913624bcd24f3de414475018d3023f060ee1 || >=028ddcac477b691dd9205c92f991cc15259d033e <b2e382ae12a63560fca35050498e19e760adf8c0 || fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8 || 0cabf9e164660e8d66c4810396046383a1110a69 || >=5.4.251 <5.4.287 || >=5.10.188 <5.10.231 || >=5.15.121 <5.15.174 || >=6.1.39 <6.1.120 || >=4.19.291 <4.20 || >=6.4.4 <6.5 | 4379c5828492a4c2a651c8f826a01453bd2b80b0, 336e30f32ae7c043fde0f6fa21586ff30bea9fe2, fb5fee35bdd18316a84b5f30881a24e1415e1464, 5202391970ffbf81975251b3526b890ba027b715, cc05aa2c0117e20fa25a3c0d915f98b8f2e78667, 5e0e913624bcd24f3de414475018d3023f060ee1, b2e382ae12a63560fca35050498e19e760adf8c0, 5.4.287, 5.10.231, 5.15.174, 6.1.120, 4.20, 6.5 |
| Linux/Linuxgeneric | 6.5 | Not reported |
| Siemens/RUGGEDCOM RST2428Pgeneric | >=0 <V3.2 | V3.2 |
| Siemens/SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familygeneric | >=0 <V3.2 | V3.2 |
| Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 familygeneric | >=0 <V3.2 | V3.2 |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.0 <V3.1.5 | V3.1.5 |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.0 <V3.1.5 | V3.1.5 |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.0 <V3.1.5 | V3.1.5 |
Published upstream
Jan 11, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
Quoted source text, attributed separately from HOL analysis.